Nutrient label guide

Zinc on supplement labels

The NRV, a worked %NRV example, the authorised health claims and the dose advice for zinc, in one place.

Zinc shown on a supplement label nutrient table
NRV10 mg
15% NRV (minimum for most claims)1.5 mg
Example ingredient formzinc citrate or zinc gluconate
Authorised claims (examples)8

Showing Zinc in the nutrient table

Give the amount of Zinc per daily dose, in mg, and the %NRV. A daily dose of 10 mg works out as 10 ÷ 10 × 100 = 100% NRV. Check other doses with our %NRV calculator.

The nutrient table names the nutrient. The ingredients list names the form used, such as zinc citrate.

Is there a maximum dose?

The UK has no legal maximum for zinc in food supplements. The Department of Health and Social Care advice, published on the NHS website, is: Don’t take more than 25 mg a day from supplements unless a doctor advises it.

Authorised health claims

These are examples of authorised claims on the GB nutrition and health claims register. Use them word for word or with wording that means exactly the same, and only when the daily dose provides at least 15% of the NRV (1.5 mg).

  • “Zinc contributes to normal cognitive function”
  • “Zinc contributes to normal fertility and reproduction”
  • “Zinc contributes to normal protein synthesis”
  • “Zinc contributes to the maintenance of normal hair”
  • “Zinc contributes to the maintenance of normal nails”
  • “Zinc contributes to the maintenance of normal skin”
  • “Zinc contributes to the maintenance of normal testosterone levels in the blood”
  • “Zinc contributes to the normal function of the immune system”

Check the full register entry before you print: some claims have extra conditions. See our health claims guide and how to check a claim on the register.

Labelling notes

Zinc has a long list of claims, including normal hair, nails, skin, vision, fertility and testosterone levels, which makes it popular in men’s and beauty products.

Check before you print. Claims and dose advice are summarised from the GB nutrition and health claims register and the NHS vitamins and minerals pages, as of October 2026. Confirm your final wording against the register.

Zinc questions

What is the NRV for zinc?

The Nutrient Reference Value for zinc is 10 mg a day.

How much zinc is needed for a health claim?

Usually at least 15% of the NRV per daily dose, which is 1.5 mg.

Is there a maximum dose for zinc in UK supplements?

There is no legal maximum. The government advice is: Don’t take more than 25 mg a day from supplements unless a doctor advises it.

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